In the later years CLD did spend a lot of time on
logic, arguing sometimes with the Professor of Logic but certainly teaching
logic to girls either at a school or individually. What we don't know
though is how effective he was at the teaching but nevertheless he obviously saw
himself as a logician. So how did CLD define himself?
Edith Oliver wrote many years after his death about
her tete a tete dinners with Dodgson :-
'Mr. Dodgson never spoke of Alice in Wonderland,
but there were three other things in his life of which he seemed proud. They
were his kettle (he modified this so that it had a long handle for getting it
off the stove without burning his hands), his logic, and his photographs.. . . .
. . . Then he was always in the middle of an argument with the
university Professor of Logic, and each time I dined in his rooms he had ready a
newly invented problem of his own which I was asked to solve by common
Edith was writing this about a friendship she had
with CLD in the mid 1890's. His definition of himself at that time would
appear to be as inventor, photographer and logician. Unfortunately, Edith
was not as skilled at logic as CLD so we are unable to assess, as we can with
his photography, how effective he was at logic. He often found flaws in his
logic and his inventions and admitted to these in his diaries.